Combing machine



July 12, 1932. W. NASWTH 1,866,901

00111511111 MACHINE Filed Sept. 19, 1930 Patented July 12, 1932 UNITED STATES JOHN WILLIAM NASMITI-I, 0F HEATOLT MERSEY,MANCHESTER, Elll'GLAND COMBIN'G MACHINE Application filed September 19, 1930. Serial No. 483,027.

The invention relates to fibre-combing machines of the rectilinear type, such as the Nasmith and Heilmann combing machines.

It is a matter of general and advantageous practice to set the top comb as closely as possible to the nip of the detaching means in such machines, and to arrange the comb so that the needles thereof enter the tuft of combed fibres in such a manner that the said needles and tuft form on the detaching side of the comb an angle which is not permissibly greater than a right angle. As a result the tuft fibres are drawn by the detaching means into the upper region of the needling, and therefore the more acute the angle formed by the tuft depending upon that setting.

The object of the present invention is an improved form of comb which can be set to give an angle as defined between the comb needles and tuft whilst obtaining and maintaining a very close relationship between the nip of the tuft detaching means and the comb. To this end and according to the invention the operative portions of the combneedles are set at an angle to that part of the comb body to which the said needles are attached.

For a full understanding of the invention examples of needle forms constructed according to such invention are shown in the annexed drawing which will now be described.

In the drawing Figure 1 illustrates diagrammatically and for explanatory purposes only a detaching roller and combing cylinder segment forming a detaching nip, a form of comb constructed according to this invention being shown in relative position to the detaching roller; but the application is the same if a double roller detaching nip be considered.

Figures 2 and .3 show further forms of comb needles which may be adopted.

In Figure 1 D is a detaching roller, C a combingcylinder segment, S the stock of the top comb, P the needle plate, N the needles of the comb, and T representing the nip er tuft of fibres. The needles may be of usual form at commencement, that is to say, straight, and they may be soldered or otherwise secured to the plate P in that condition. After fixing, the needles and comb stock may be held in a clamp or other device and suflicient pressure applied to the needles to cause them to be bent and assume the desired bend or curvature.

Thus, with the comb stock S reciprocating for example in a vertical plane, the angle formed by comb needles N and the fibre tuft T has the angle formed by such needles and the plate P as a determining factor.

Figure 2 illustrates a further form in which the needles are bentat their junction with the plate P after being fixed thereon by means before referred to. Figure 3 illustrates a further form of needle, the needles in this case being bent about midway oftheir length from needle plate to point so that only their lower and operative portions are at an angle to the needle plate.

I claim 1. For use in the coming of textile fibres in a combing machine, a top comb consisting of a straight comb stock, and comb needles the upper portions of which are secured to and parallel with the lower portions of a face of such comb stock, lower portions of the said needles forming an angle to such stock.

2. For use in the combing of textile fibres in a combing machine, a top comb consisting of a straight comb stock, and comb needles the upper portions of which are secured to and parallel with the lower portion of a face of such comb stock, lower portions of the needles projecting below the edge of the comb stock and forming an angle to such stock.

3. For use in the combing of textile fibres in a combing machine, a top comb consisting of a straight comb stock and comb needles secured upon and parallel with the lower portion of a face of such comb stock, the said needles being bent at an angle to such face at their junction with the comb stock edge.

4. For use in the combing of textile fibres in a combing machine, a top comb consisting of a straight comb stock and comb needles secured upon and arallel with the lower portion of a face 0? such comb stock, the said needles being bent at an angle between their junction with the comb stock edge and the needle points.

5. For use in the combing of textile fibres in a combing machine, a top comb consisting of a straight comb stock and comb needles secured upon and parallel with the lower-portion of a face of such comb stock, the said needles being curved between their junction with the comb stock edge and the needle points.

In testimony whereof I have hereunto set my hand. A}

JOHN WILLIAM NASMITI-I.

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